First of all welcome to FlyerTalk. Are you looking for an SUV particularly? If so you should be able to find something that's 4WD/AWD easily. I know in the intermediate SUV category National carries the Equinox and Torrent.
As far as cars it's hard to say. GM doesn't make a whole lot with AWD, not like Ford and Chrysler with the Fusion and Sebring respectively. That said, National is moving towards base models so it's unlikely that they would get the AWD version of a car that doesn't come with it.
You also say you're a Ford person, you might have some luck grabbing one of those. I know that National has a lot of Ford Escapes in general. I've had them twice before and they're a great capable little vehicle. Let us know what you're looking for and we'll try to help!